Stem-and-leaf Plots
Mean, Median, Mode and Range
The shape of distribution
Classifying Data
Lucky Dip
100

How many females responded to this survey?

27

100

Describe what 'Mode' is.

The score that occurs most often

100

Describe the shape of the distribution.

Symmetrical

100

The height of students

Numerical Continuous

100

List out Measure of Central Tendency

Mean, Mode, Median

200

Find the mode and the range.

Mode = 58


Range = 42

200

Find the mean of the following set of data to 1 decimal place:

13.5, 14.2, 11.9, 15.7, 18.4, 17.6, 12.0

Mean = 14.8

200

What is the mode for the following?

22

200

Number of chairs in the room

Numerical Discrete

200

What does range calculate?

The measure of spread of a data set

300

Form an ordered stem-and-leaf plot based on the following set of data

11, 22, 27, 31, 37, 39, 41, 44, 46, 46, 49, 50, 52  

Teacher to decide :)

300

Find the median of the following set of data:

5, 3, 8 ,7 ,1 ,6, 7, 7, 5, 15, 12

Median = 7

300

What is the range for the following data?


72

300

Colours of cars

Categorical Nominal

300

How do you find the median?

Order the scores and find the one in the middle

400

Find the upper and lower quartile of the following set of data.

Lower Quartile = 52.5

Upper Quartile = 72

400

Find the median, mean and range of the following set of data:

-5, 0, -2, 4, 6, -2, 5, -1, -2, 0

Median = -0.5

Mean = 0.3

Range = 11

400

How many modes are in this distribution?


2

400

Shoe size

Numerical discrete

400

Features of frequency histogram and frequency polygon

- Half a column width before and after histogram

- Polygon starts and end at 0

- Polygon touches the middle of the histogram columns

500

The following stem-and-leaf plot shows the marks for the class 10F and the class 10M. Find the median for both classes.

10F:69

10M: 70.5

500

Natasha scored a mean of 74 for 5 maths tests that she completed. What was the total number of marks that Natasha scored across all 5 maths tests?

370

500

Which of the following statements is true about this set of data: A) The mode for Girls is 67 B) There is more data collected for Boys than for Girls. C) The range for Girls is equal to the range for Boys

B

500

Olympic medals

Categorial Ordinal

500
After 5 test's, Matt's average was 83%. What does he need in the 6th test to boost his average to 85%?

95%